Wiktionary
alt. (context inorganic compound English) A toxic gas, H2S, smelling like rotten eggs and used in analytical chemistry and industry. n. (context inorganic compound English) A toxic gas, H2S, smelling like rotten eggs and used in analytical chemistry and industry.
WordNet
n. a sulfide having the unpleasant smell of rotten eggs
Wikipedia
Hydrogen sulfide is the chemical compound with the formula . It is a colorless gas with the characteristic foul odor of rotten eggs; it is heavier than air, very poisonous, corrosive, flammable, and explosive; properties shared with the denser hydrogen chalcogenides.
Hydrogen sulfide often results from the prokaryotic breakdown of organic matter in the absence of oxygen gas, such as in swamps and sewers; this process is commonly known as anaerobic digestion. also occurs in volcanic gases, natural gas, and in some sources of well water. It is also present in natural halite type rock salts, most notably in Himalayan Black Salt, which is mostly harvested from the mineral-rich Salt Range mountains of Pakistan. The human body produces small amounts of and uses it as a signaling molecule.
Dissolved in water, hydrogen sulfide is known as hydrosulfuric acid or sulfhydric acid, a weak acid.
Swedish chemist Carl Wilhelm Scheele is credited with having discovered hydrogen sulfide in 1777.
The British English spelling of this compound is hydrogen sulphide, but this spelling is not recommended by the International Union of Pure and Applied Chemistry or the Royal Society of Chemistry.
In 2015, hydrogen sulfide under extremely high pressure (around 150 gigapascals/1.5 million bar) was found to undergo superconducting transition near , the highest temperature superconductor known to date.
Usage examples of "hydrogen sulfide".
This was out of respect for the human nose, for from the Diaboli, slightly so as they breathed, much more so when they spoke, there came the gentle and continuous drift of hydrogen sulfide.
Iklind wasn't breathing at all, and no wonderthe hydrogen sulfide concentration in here had peaked at over 1,000 ppm, according to the monitor above the open access hatch.
Their own metabolism revolved about the reduction of sulfur and sometimes those foremost among the humans in the crowd caught a foul whiff of the hydrogen sulfide exhaled by the Diaboli.
Lark gagged on an odor he recalled from visits to the laboratory of the Explosers Guild, in Tarek Town-hydrogen sulfide gas.
Apparently very deep-maybe in the vicinity of hypothesized clouds of hydrogen sulfide-there is an abundant blue substance.
It contained no oxygen, but a lot of other gases that are poisonous to us, such as hydrogen sulfide (the gas that gives rotten eggs their smell).
In some cases these ghosts-in-plaid are accompanied by the odor of hydrogen sulfide and sudden chills or sudden blasts of heat, while other episodes are probably purely hypnopompic.
Her first thought had been to use hydrogen sulfide, which surely would have had the desired effect.
It smelled a lot like hydrogen sulfide (rotten egg gas) which can be given off by decomposing vegetation.
The farther we drifted into the outlines of the bowl, the redder the water became, and the stronger the smell of hydrogen sulfide, until I spotted a solid mass of what looked like flame lying ahead, filling the western curve of the natural harbor.
Every so often, sitting here, I smell the faintest traces of hydrogen sulfide.